Think twice before adding extra dressing to your salad at lunchtime. A few tablespoons of salad dressing alone could contain your recommended daily amount of sodium.

The FDA is considering a new recommendation for all Americans to lower their sodium intake from 3,400 mg to 1,500 mg per day - that adds up to about 2/3 of a teaspoon. But considering the average American consumes more than double that on a daily basis, it's not going to be easy.

Restaurants may also have to lower the amount of salt in their dishes, following the successful artificial trans-fats fight, launched nationwide in 2006.

"Nightline" asked nutritionist and registered dietitian Cynthia Sass to create four average dinners for us to see just how quickly that salt can add up.

Here is her breakdown of a kid's meal, a microwave meal, a football game day meal and a date night meal:

All of these meals top the 1500 mg recommendation for the WHOLE DAY - and each was just one meal! The Olive Garden dinner is more than THREE days worth of sodium rolled into just one of your three meals of the day.